A function can only have a single return value. You could either pack multiple values into a compound data type (e.g. a struct), or you could return values via function parameters. Of course, such parameters would have to be passed using pointers to memory declared by the caller.

1

Declare method like this foo (char *msg, int *num, int *out1, int *out2); and call it like this

int i=10; char c='s'; int out1; int out2; foo(&c,&i,&out1,&out2); 

Now what ever values u assign to out1 and out2 in function will be available after the function returns.

2

Return a structure having more than one members.

In C, one would generally do it using pointers:

int foo(int x, int y, int z, int* out); 

Here, the function returns one value, and uses out to "return" another value. When calling this function, one must provide the out parameter with a pointer pointing to allocated memory. The function itself would probably look something like this:

int foo(int x, int y, int z, int* out) { /* Do some work */ *out = some_value; return another_value; } 

And calling it:

int out1, out2; out1 = foo(a, b, c, &out2); 

You cannot return more than 1 value from a function. But there is a way. Since you are using C, you can use pointers.

Example:

// calling function: foo(&a, &b); printf("%d %d", a, b); // a is now 5 and b is now 10. // called function: void foo(int* a, int* b) { *a = 5; *b = 10; } 

Functions can return arrays or lists